Then knowing he needed 4 mA to power each LED for backlighting he used some 1978 vintage current limiting diodes designed to pass 2mA each regardless of voltage source, within limits of course.

We always enjoy [w2aew’s] videos, and his latest on zener diodes is no exception. In it, he asserts that all Zener diodes are not created equal. Why? You’ll have to watch the video below to ...

La Bizounerie Glass Engraving with Diode Laser — Tutorial! Posted: May 22, 2025 | Last updated: May 22, 2025 Learn how to create stunning glass engravings using a diode laser with this step-by ...